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DHT22 Digital Temperature and Humidity Sensor Module
KSh1,300
- Output Signal: Single-bus digital signal.Operating Voltage:
- DC 3.3V to 5.5V.Humidity Measurement Range: 0% to 100% RH.
- Humidity Measurement Accuracy: ±2% RH.
- Temperature Measurement Range: -40°C to 80°C.
- Temperature Measurement Accuracy: ±0.5°C.
- Sampling Interval: 2 seconds (0.5 Hz frequency rate).
Description
The DHT22 is a low-cost, high-precision environmental sensor used to track atmospheric conditions. It houses a capacitive humidity sensor element and a high-precision NTC thermistor to capture environmental variables. Internal processing transforms these readings into a calibrated, single-bus digital data packet transmitted over a single serial port.This specific version comes mounted onto a breakout PCB that includes an onboard pull-up resistor and filtering capacitor. This design simplifies the standard 4-pin bare sensor structure down to a plug-and-play 3-pin configuration, entirely bypassing the requirement for external resistors. It interfaces seamlessly with popular development microcontrollers, such as an Arduino Uno R3, ESP32, ESP8266, or Raspberry Pi, making it a staple component for weather tracking, HVAC automation, greenhouse cultivation, and smart home IoT systems.
Features
- Output Signal: Single-bus digital signal.Operating Voltage:
- DC 3.3V to 5.5V.Humidity Measurement Range: 0% to 100% RH.
- Humidity Measurement Accuracy: ±2% RH.
- Temperature Measurement Range: -40°C to 80°C.
- Temperature Measurement Accuracy: ±0.5°C.
- Sampling Interval: 2 seconds (0.5 Hz frequency rate).
Shipping and Delivery
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